Question

The diagram below shows the velocity versus time plot for a particle. The work done by the force on the particle is positive from

• A. $A$ to $B$
• B. $B$ to $C$
• C. $C$ to $D$
• D. $D$ to $E$

Answer 1

The correct option is A $A$ to $B$

From the graph, it can be seen that in the region $AB$, velocity of the particle is increasing. So, kinetic energy of the particle also increases from $A$ to $B$.

Accoring to work energy theorem $W_{net}=\Delta KE$.

Hence, the work done by the force from $A$ to $B$ is positive.